Editing HTTP (section)

=== Response syntax ===
A server sends ''response messages'' to the client, which consist of:<ref name="rfc9112-2.1" />
* a '''status line''', consisting of the protocol version, a [[Space (punctuation)|space]], the [[List of HTTP status codes|response status code]], another space, a possibly empty reason phrase, a [[carriage return]] and a [[line feed]], e.g.:
*: <syntaxhighlight lang="http">
HTTP/1.1 200 OK
</syntaxhighlight>
* zero or more [[HTTP response header field|response header fields]], each consisting of the case-insensitive field name, a colon, optional leading [[Whitespace (computer science)|whitespace]], the field value, an optional trailing whitespace and ending with a carriage return and a line feed, e.g.:
*: <syntaxhighlight lang="http">
Content-Type: text/html
</syntaxhighlight>
* an empty line, consisting of a carriage return and a line feed;
* an optional [[HTTP message body|message body]].